Although missing out on the festivities, the proud mum was quick to congratulate Mason on social media, writing, ‘Happy birthday to the coolest little boy in the entire world. You teach me so much every single day and changed my universe the second I met you. You have taught me what life is all about and I am truly blessed and honored to be your mommy.’

Kim Kardashian may appear to be one of the most self-confident people on the planet - but it has not always been this way, especially when she was pregnant with her daughter North and battled with her weight gain